CLI Support

[C-Loftus]

Odilia currently does not support cli args. When I first installed odilia I expected to be able to run --help to get some general info on the program. It is also useful to be able to quickly get the version and specify the config directory in case you are testing with different configurations and have multiple configs (this is likely moreso to be a useful features as more settings are added and switching between configs becomes more common)

I messed around with adding log level but I think it is confusing to users to have that be both a CLI arg and a setting in the config toml file so I kept the cli very simple for now. This should be easy to add to if more features are desired.

[codecov]

Codecov Report

Attention: Patch coverage is 20.00000% with 4 lines in your changes are missing coverage. Please review.

Project coverage is 14.30%. Comparing base (797956a) to head (5d758f2).

Files	Patch %	Lines
odilia/src/main.rs	0.00%	3 Missing ⚠️
odilia/src/cli.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #126      +/-   ##
==========================================
- Coverage   14.33%   14.30%   -0.03%     
==========================================
  Files          16       17       +1     
  Lines        1556     1559       +3     
==========================================
  Hits          223      223              
- Misses       1333     1336       +3     

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